Blar i UiS Brage på forfatter "Gudmestad, Ove Tobias"
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Concerns to Be Considered During Recycling Operations
Gudmestad, Ove Tobias (Peer reviewed; Journal article, 2019)Recycling should in principle be the goal in all aspects of society. There are, however, limitations, as any recycling task may lead to pollution in the ground, water or air. In the most extreme case, recycling may lead ... -
Corrosion propagation phase and bond strength degradation of reinforced concrete structures: state of the art
Adasooriya, Mudiyan Nirosha Damayanthi; Samarakoon, Mudiyansele Samindi Manjula K; Gudmestad, Ove Tobias (Journal article; Peer reviewed, 2018)Corrosion causes damage to reinforcing steel in concrete structures and governs the service life of the structures. Currently, researchers are paying attention to modelling the behaviour of the bond between the concrete ... -
Crack formation and Crack propagation into the compression zone on reinforced concrete beam structures
Kakay, Samdar; Bårdsen, Daniel; Gudmestad, Ove Tobias (Journal article; Peer reviewed, 2017)Crack formations in concrete may cause major damages in concrete structures. These damages require extensive maintenance work and thus have high costs. This paper addresses issues such as what causes cracks in concrete ... -
Design basis considerations for the design of floating offshore wind turbines
Gudmestad, Ove Tobias; Schnepf, Anja (Peer reviewed; Journal article, 2023)The wind farm owner/operator must prepare a Design Basis to facilitate the design of floating offshore wind turbines. The Design Basis is crucial to ensure that the individual elements of the wind farm are designed according ... -
Design, installation and operation of high voltage cables at sea.
Våbenø, Louise (Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06)Underwater cables have been connecting continents since the 1860s. Over time, the process of laying cables at sea has developed into a state-of-the-art operation. Now these operations are becoming more technologically ... -
Development concept of oil field-A in the Pechora sea uner conditions of initial data uncertainty
Mikhalkin, Vladislav (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020)The development strategy of equipping an oil field of the Pechora Sea is discussed in this thesis. Because of the confidential data on the field received from PJSC Rosneft, the field is conventionally called Field-A in ... -
Development concepts for Sakhalin's offshore field development
Beltcov, Andrei (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-15)When a company undertakes to develop an oilfield, certain activities represent the foundation of the development, ranging from information about the metocean conditions at the site to marketing. The concept phase itself ... -
Development of a method for evaluation of measures used for winterization of offshore facilities and units
Jacobsen, Sigurd Robert; Viddal, Steven; Dørum, Kjell-Gunnar; Gudmestad, Ove Tobias; Wiencke, Hermann Steen (Peer reviewed; Journal article, 2019)The environmental conditions in the Barents Sea include low temperatures, wind, snow and precipitation influencing safety, working environment, operations and equipment functionality. The conditions are not extreme compared ... -
Development of the Oil and Gas Fields' Cluster in the Pechora Sea
Berlin, Nikita (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020)The Master Thesis aims to develop a cluster oil and gas fields development concept in the Pechora sea and carry out an economic feasibility estimation of this concept. The first chapter describes the climatic conditions ... -
Eastern-Mediterranean Metocean Design Basis
Zughayar, Rami (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-12-23)Energy is one of the basic requirements of sustainable development of civilizations. Mankind is moving further to harsher environments, e.g. marine and arctic environments, to sustain energy production. Technology evolution ... -
Effects of nonlinearities in the Equation of motion for one degree of freedom systems
Hellevik, Karina (Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-12)Most natural phenomena in the world have a nonlinear behaviour. If systems are to be described by linear equations they must follow the superposition principle. The superposition principle, consisting of additivity and ... -
The effects of slab geometries and wave directions on the steep wave-induced soil response and liquefaction around gravity-based offshore foundations
Li, Yuzhu; Ong, Muk Chen; Gudmestad, Ove Tobias; Hjertager, Bjørn H (Peer reviewed; Journal article, 2019)Gravity-based offshore foundations generally consist of a bottom slab and one or more cylindrical shafts on top of it. The slab geometry can strongly affect the surrounding flow pattern, dynamic wave pressure distribution ... -
Emergency Release of Mooring Lines in the Barents Sea
Næss, Sigurd Vestbø (Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06)With increasing offshore activities in the Barents Sea, the need for risk reducing measures will increase as well. In the Arctic, the weather can change rapidly and is characterized by being difficult to forecast. As a ... -
Evaluation of Ballast Failures during operations of Semi-submersible rigs
Unegbu, Ihuaku (Masteroppgave/UIS-TN-IØRP/2017;, Master thesis, 2017-06-15)Offshore drilling is an operation performed to explore for and extract hydrocarbon beneath the seabed. The drilling operation is a very sensitive and extremely risky task and can be carried out from a floating vessel, ... -
Evaluation of ballast failures during operations of semi-submersible rigs
Unegbu, Ihuaku Nneoma Kelechi; Gudmestad, Ove Tobias (Peer reviewed; Journal article, 2019)Risk analysis/assessment is one of the challenges encountered during operations of offshore units on the Norwegian Continental Shelf (NCS). In recent years, the Petroleum Safety Authority (PSA) has focused on hazards ... -
Feasibility study for offshore oil field, Sakhalin Island
Efimov, Nikolay (Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)Russian Federation possesses an enormous volume of hydrocarbons. A significant part of the hydrocarbons is located in offshore areas, mostly in arctic and sub-arctic regions, where field development is relatively complicated ... -
Feasibility study of the Ayashkinskoye license block (Sakhalin offshore) development
Kirill, Obriaschenko (Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)Despite several successful existing offshore Russian projects such as Prirazlomnoye, Arkutun-Dagi, Piltun-Astokhskoye, Chayvo and Kirinskoye, Russian continental shelf remains to be a unique perspective for future exploration ... -
Feasibility study of the concept of the Dolginskoye field development with subsea production systems.
Egorov, Yuri (Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06-14)This master`s thesis is dedicated to the Dolginskoye oil field development concept comprising of a gravity base structure with subsea production systems. This field is located in the central part of the Pechora Sea. The ... -
Future Risk Scenarios of The Northern Sea Route
Johannessen, Stig Andreas (Masteroppgave/UIS-TN-ISØP/2020;, Master thesis, 2020-06-15)The Northern Sea Route is an area that is prone to wicked problems. Wicked problems are problems that are not predefined, nor do they have a single solution. They are problems that exist due to the opinions and wants of ... -
Identifying challenges facing reliable supply chains and ways to mitigate then for mining in the Baffin Bay region
Taarup-Esbensen, Jacob; Gudmestad, Ove Tobias (Peer reviewed; Journal article, 2021)There are substantial economic opportunities in extracting minerals in the Arctic region. However, it has proven difficult for operators to ensure reliable supply chains (SCs) north of the Arctic Circle. This paper uses a ...